1377222 has 48 divisors (see below), whose sum is σ = 3472896. Its totient is φ = 356400.

The previous prime is 1377191. The next prime is 1377223. The reversal of 1377222 is 2227731.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (1176) is a multiple of the sum of its prime divisors (294).

It is a junction number, because it is equal to n+sod(n) for n = 1377192 and 1377201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4947 + ... + 5217.

It is an arithmetic number, because the mean of its divisors is an integer number (72352).

2^1377222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736448).

1377222 is an abundant number, since it is smaller than the sum of its proper divisors (2095674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377222 is a wasteful number, since it uses less digits than its factorization.

1377222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 294 counting only the distinct ones).

The product of its digits is 1176, while the sum is 24.

The square root of 1377222 is about 1173.5510214729. The cubic root of 1377222 is about 111.2588714888.

The spelling of 1377222 in words is "one million, three hundred seventy-seven thousand, two hundred twenty-two".